Page 15 of 18 FirstFirst ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18 LastLast
Results 141 to 150 of 174

Thread: Building a 7age.

  1. #141
    Elite rthy's Avatar
    Join Date
    Dec 2008
    Name
    Leo
    State
    VIC
    Location
    Tulla
    Country
    Australia
    Posts
    7,308

    Default

    Am i allowed to do a dodgy and used a press pin with a smallport piston?

    edit:
    4AGE 100kw/Smallport Pistons use 20mm floating pin
    7AFE Pistons use 20mm press pin
    Last edited by rthy; 8th March 2013 at 05:47 PM.
    30kw club

  2. #142
    Noooob
    Join Date
    Jun 2010
    Name
    Matt
    State
    NSW
    Location
    Campbelltown
    Country
    Australia
    Posts
    5,246

    Default

    When i did my 7a with 20v pistons, it was pressed in... Was advised by the machiner not to put a circlip on it...
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

  3. #143
    Elite rthy's Avatar
    Join Date
    Dec 2008
    Name
    Leo
    State
    VIC
    Location
    Tulla
    Country
    Australia
    Posts
    7,308

    Default

    did you get the piston piston machined to fit the pressed gudgeon pin?
    30kw club

  4. #144
    Noooob
    Join Date
    Jun 2010
    Name
    Matt
    State
    NSW
    Location
    Campbelltown
    Country
    Australia
    Posts
    5,246

    Default

    I paid the machiner $30 to do them for me, not sure if machining was required or not....
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

  5. #145
    Elite rthy's Avatar
    Join Date
    Dec 2008
    Name
    Leo
    State
    VIC
    Location
    Tulla
    Country
    Australia
    Posts
    7,308

    Default

    Thanks, did you have any issues with it?

    just need to sort out the pistons then will blow tyres..... UP
    30kw club

  6. #146
    Senior Member Adsie's Avatar
    Join Date
    Dec 2008
    Name
    Adam
    State
    QLD
    Location
    Birkdale
    Country
    Australia
    Posts
    161

    Default

    Mine uses stock 7AFE rods and 20V pistons. The pins are pressed into the rod and the piston can move. Pistons do not need to be modified.

  7. #147
    Elite rthy's Avatar
    Join Date
    Dec 2008
    Name
    Leo
    State
    VIC
    Location
    Tulla
    Country
    Australia
    Posts
    7,308

    Default

    i wonder if the smallport 16v are different to 20v ones?
    But i have seen 16v pistons used on 20v blocks - then again donno if any mods are done.
    30kw club

  8. #148
    Veteran willa's Avatar
    Join Date
    May 2009
    Name
    Will
    State
    VIC
    Location
    Northern 'burbs
    Country
    Australia
    Posts
    1,256

    Default

    Have any of you guys used ca18 pistons in your 7a builds? I recently heard of someone who did, not sure on what c.r it ended up with though
    SuperFunHappySliders

    SR's are ghey.

  9. #149
    Noooob
    Join Date
    Jun 2010
    Name
    Matt
    State
    NSW
    Location
    Campbelltown
    Country
    Australia
    Posts
    5,246

    Default

    20v pistons can easily be interchanged with 16v... so my pistons didn't need modifying...
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

  10. #150
    Veteran
    Join Date
    Dec 2008
    Name
    John
    State
    TAS
    Location
    Hobart
    Country
    Australia
    Posts
    2,200

    Default

    Without crunching numbers.. Something Sam Q might do if you ask him too...

    Ca18 pistons are often used in smallport 16v 4.5ag builds...ie 83mm bore, offset ground crank...often resulting in higher compression that standard ae92 pistons...

    From memory when robbo/seamus built his 7ag 16v they used smallport pistons and resulted in a high comp motor with little ability to wind timing into it (stock ecu)

    using ca18 pistons would result in high compression again (in theory)...a 83mm bore with the less than ideal rod stroke ratio of the 7a could be asking too much...

    I'm definitely no engine building expert, so don't take it as gospel...just selection of information I've retained over the years and knowledge from having my own motor built...

Page 15 of 18 FirstFirst ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18 LastLast

Similar Threads

  1. Replies: 22
    Last Post: 5th March 2012, 10:33 AM
  2. building need parts..
    By josh.. in forum Cars or Parts Wanted
    Replies: 3
    Last Post: 31st March 2011, 09:55 PM
  3. Building a cage
    By driftke70 in forum Technical - Questions
    Replies: 4
    Last Post: 27th January 2007, 04:16 PM
  4. Building 4age
    By works510 in forum Technical - Questions
    Replies: 33
    Last Post: 6th March 2006, 05:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •